TDA7498 class D amp could be used as a substitute?

[Holy Hathaway1]

I wonder if TDA7498 class D amp could be used as a substitute for a dead STK power module running at 39 Volt.  If I remember well a class D amp needs the grounds of the output channels to be separated.  One shared output ground, like in a standard amp chassis, may kill the class D amp.  Anybody?

 

[HarryA1]

How do you deal with a SMD that has 36 leads?